Metal-turning machine.



W. E. COLE.

METAL TURNING MACHINE.

APPLICATION FILED DEO.14. 190s.

Patented Aug. 5,1913.

3 SHEETS-SHEET 1.

W. E. COLE, METAL TURNING MACHINE.

APPLICATION FILED DEO.14, 190s.

Patented Aug. 5, 1913. 1

3 SHEETS-SHEET 2.

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W. E. COLE.

METAL TURNING MACHINE.

APPLICATION FILED DIE-30.1%. 1908.

Patented Aug.'5, 1913.

3 SHEBTSSHEIBT 3.

/I/III///I////// lllllll ll v e t n ni c tllhltitlhl fer t WILLIAM E. COLE, OF WORCESTER, IvZASSACHUSETTS, ASSIGNOR T0 BOSTON PRESSED METAL CDMPANY, OF WORCESTER, JEEASSACHU$ETTS, il CORPORATION OF MAINE.

METAL-TURNING MACHINE.

, State of Massachusetts, have invented a new and useful Metal-Turning Machine, of which-the following isa specification.

This invention relates to mechanism for turning metal and other materials, capable of use in many ways, but particularly adapted for truing the edges of ring or cup-shaped articles, for turning grooves therein, or for performing other turning operations upon them.

The principal objects of the invention are to provide automatic mechanism whereby the work, as for example, a ringor cupshaped article can be placed by hand or automatically in a very simple manner upon a projecting head or the like, shaped and adapted to receive it, and the head will be caused to move automatically into position to present the article to a. rotating Work holding device and center it therein; means whereby the work-holding device will be automatically operated to clamp the work thereon in a central position, means whereby a tool will then be caused to automatically approach the work-holding device or move therein and perform the necessary. opera tion; means whereby the work-holding device is then automatically caused to release its grip on the work; means whereby the work is then positively and automatically ejected from the work-holding device; means whereby the work is then received from the work holding device and thrown over into a receptacle or otherwise conveyed away from the machine; and means whereby said parts are returned to their initial position automatically after each of the above mentioned operations.

The invention also involves means for operating these various instrumentalities in the order described above, and in its preferred form it involves means, connected with the device for originally receiving the work and presenting it to the work-holding device. for actuating the means for receiving the work from the work holding device and discharging it from the machine.

It also involves certain operating connec Specification of Letters Eatent.

Application filed December 14, 1903.

Patented Aug. 5, lei-l3.

Serial No. SliS'Y/itEQ.

tions for the tool whereby although the lat ter is automatically actuated, yet it can very easily be thrown out of operation so as to be moved back and forth by hand.

In one of its forms the invention also involves means for forming agroove on the inside of a ringor cup-shaped article by a. sequence of operations similar to those above mentioned, and by mechanism coming in a general way under the description above given but considerably modified in order to provide for forming the inside groove.

The invention also involves many features and details of construction, and involves additional advantages and improvements which will be set forth hereinafter.

Reference is to he had to the accompanying drawings in which Figure 1 is a side elevation of a metal turning machine constructed in accordance with this invention; Fig. 2 is a transverse sectional view of the same on the broken line 22 of Fig. 1. Fig. 3 is a plan of a portion of the metal turning machine; Fig. is a longitudinal sectional view on an enlarged scale of the form of work holding device shown in Fig. 1; Fig. 5 is a similar View of certain mechanism for operating the work holding device; Figs. 6, 7, 8, 9 and 1G are diagrammatic views showing several stages in the operation of truing up the edge of a ringor cup-shaped art1cle; Fig. ,11 is a fragmentary side view of a portion of a metal turning machine show ing the same invention in amodified form; Fig. 12 is a plan of the same; Fig. 13 is an end view of a portion of the same; Fig. 14 is a side elevation of the parts shown in Fig. l3; and Fig. 1:") is a longitudinal scc tional view of parts of the same, the last three figures being on an enlarged scale.

In order to give an idea of the work which it is desired 'to perform in the mechanism shown in the first five figures, refer ence is to be had to the diagrammatic figures numbered 6 to 10 inclusive. In these figures it chuck or other work-holding device 20 is shown which as indicated in Fig. 1, is supported by a head-stock 21 so that it can be rotated constantly, as by a belt 22 in a well known manner. At one end of this located :1. recinrocuting rod 23 hevch u c up on the heed us it rec procetes post the men; its will reedily he understood, it in place o .he chuck it Work holding" de vice is l which engages the inside of the erticlc. thi head is modified accordingly.

eutoa'nuticelly caused to reciproc with the unis oi the chuck from on shown in Fig. t3. to the position in Fig. 'l'. Automatic means is profor then operating the chuck to close on the article 525 end clamp it therein. Then the rod withdrawn automatically so thut the jourts ore in the position shown in h. it. tool 26 is then automatically brought up so as to true d the edge of the ort';;le es indicated in 9. The tool is then automatically Withdrawn and the chuck tl'iereutter automatically loosened. Tlhen lfl ejector 2? is brought forward tlui-ouri the chuck to positively discharge the ivorli therefrom. its the Work leaves the chuclc it engages a sorter 28 which moves outwardly in any desired direction so as I e the article from the machine. ll i lest operation new article Tie}; he pieced on the hood 2% which starts heck oon as the sorter has operated. l

0 provide tor peritorming all these operations in the proper order and at errohtly the proper times and Without the guide 9 once o1. operator, eutoincitic mechanism is e .pl ed, e conveiuent end PIflCtlCfllJlG ct ich is shown in the first five 'ne shown as mounted on e lied or iireme 30 having the usual hcedetocli :21 which hes been reiterred to above. This heed 1; show i as ot' a, form ordinarily employed in lethes, end the live spindle is intend-ed to he operated continuously and so preterm. independently ot' the rest of the niechine. this locd or amine is provided with u. plurulitv ot brackets 33 for o. longi;

' i left is shown as he pointed nreterehly independently 0t 5 the li e suindlc l'JfJ moons oi? a belt 35,-pullcjr 3h, end pulley 39, which letter :he shalt but it will he unilmt it can he operated in env nieut or pructicehle in enner. On s mounted can]. 40 which rating :i roller ll on e. lever .lfulcrirnec on lireclret t3 on the frame. This lever is connected by link l l u. cunning; bracket a lever lli extending up from and connected :orlr placed on the head Q l the v sting; slide 76 whi :neeeeio .nicunted on e shaft 59 which turns in u hearing 53 that is on e fixed bracket 54 on the frame. lit in the end of: this shaft that the sorter is mounted. the sorter extending; preterehlv at right angles from the shaft. end being" provided with an angular end so that when the rod moves backward, that is, to the right, the sorter will he brought down into position in front of the chuc r 21., and when the rod 23 moves to the left, the Wheel and shaft will move the sorter 28 out so 5.15 to throw the article into it basket or receptacle This explains the manner in which the article to he operated upon is presented to the chuck or other worlr holdinu device and removed therefrom. The zirin culled rter because it separates the notched WOIK from the waste.

it will he understood cl course that this invention is not confined to the use of 2: universal clinch, but one of on ordii'iurf tyne illustrated the die-wings and is pref eruhly used with. the machine. For operat: ing it. the 'lol mvinn; mechanism shown: On the s; at rsin'i 60. 1. his cum opersoziit lltES :1 roller ii 6% which anountml to reciprocate on u. spindle or sleeve 65 which projects from the end of the headstock. This sliding member has it curved or slanting surface at the end which. upon its reciprocation, en-

rollers 66 on cell-cranks 67 and causes the hitter to move forward a. rod or sleeve till. this operates to move the jaws till bodily torwurr so us to c nge an angular or conical nrui-rcciprom mg; surl'uce it) on the chuck vsherehy the jmvs are torccd l .g'ctlici'. The cuiu (it) is so arranged that the one 'ution just described tulws place immediatelyutter the rod 23 moves to its extreme position to the left and ins s the article in the chuck, that is, when the parts are in the position shown in The coin then keeps the chuck jzi'xvs in this position during the operation of the tool {hi the sh aft 54lis shown e. coin Tl udu 'tcd to operate a lever 72 which has on 21TH 7 3 end which is normally held against the can). or e. spring 74. The arm 73 is provided wit 1 :1 pin T5, and on the frame of the nuichine there is etru-nsversely open ch has pivoted to it a link I? having :1 notch 78 in the bottom adapted to engage over sold pin. The slide T6 is adapted to curr u. tool holder 79 ot any ordinary or desired construction, the details of which will not be described, but it carries the tool 26. It is shown also as having an opening 80 through which another tool can project for chamfering the edge of the article or performing any other desired operation in connection with, or in substitution for, the tool 26. Those tools are held in position in any desired way, as for example, by screws 81 and 82. The cam 71 is so proportioned and located on the shaft that as soon as the cam 60 has caused the jaws of the clutch to clamp the work, the tool-holder will be moved transversely toward the chuck as is indicated in Fig. 9, so as to bring the tool into operative position. It, will be observed that by this time the rod 23 has been withdrawn (see Figs. 8 and 9) and the sorter thus brought into a position to receive the article from the chuck. It will also be observed that the link 77can be raised to dotted position so as to stop the automatic operation of the tool holder at any desired time and permit the same to be operated by hand in any of the usual ways. As soon as the proper amount of work has been performed the cam 71 allows the spring 74: to move the tool holder back out of the way as shown in Fig. 10. While this last operation is being performed the opposite part of the cam 60 comes into operation and moves the roller 61 back so as to permit the bell cranks 67 to return to normal position, which releases the pressure on the clutch aws. It will be understood however that this in itself would not ordinarily be enough to discharge the article therefrom, because the clutch jaws have not moved a great distance and in many cases the article would still remain in position, although not clutched tightly enough to permit any further operations upon it. By this time a wiper cam 85 which has a slanting surface shown as formed on a removable plate 86, has rotated far enough around to engage the end of a rod 87 which projects from the extreme end of the mechanism. This operation moves this rod inwardly to the right carrying with it a rod 88 which operates against the end of the ejector 27 which has been referred to, and forces the article out of the chuck as is in dicated in Figs. 4 and 10. The article falls on the sorter 28 and is deposited in the re ceptacle 55 as has been explained, and during this operation a new article is placed by hand or automatically on the head 2st and starts to move up into position to have the same cycle of. operations automatically per formed upon it.

In dtscribing the mechanism shown in the drawings the operation of the machine has been set forth in detail, and it will be seen that all the above mentioned functions and advantages are secured in a simple and practicable manner by means which is thoroughly automatic and does not require any attention on the part of the operator other than the mere placing of the blanks in position and the usual oiling, starting and stopping required by any machine.

In the form of the invention shown in Figs. 11 to 15 inclusive either the same or another blank is operated upon to produce an internal circumferential annular groove. ln'these figures the same bed or frame 30, shaft 34, head-stock 21, chuck 20, cam 71, lever 72, arm 73, pin 75, link 77, are shown as in the figures previously described. The operation of these parts may be the same as in the other case, and need not be referred to further. In place of the rod 23 a similarly reciprocating rod 90 is shown caused to operate in the same wa On its end is screwed a head 91. This head 91 is provided with a transversely reciprocable slide 92 mounted in ways 93 on the head, and provided with a gib 94, held by a. screw 95. A. rod 96 projects to one side of the head and carries a spring 97 which is adjustable by a nut 98 or by the head of the screw 96 and bears against the slide, normally holding it to the right as shown in Fig. 18, or to the front in Fig. 11. On the slide is mounted a tool holder 100, for carrying a cutter 101, or the like. The lever 72, 73 operatesthe link 77 as in the other figures, and this is connected with a transversely reciprocating slide 102, which has an adjustable screw or the like 103, for periodically engaging the slide 92 and thus moving the cutter transversely once during each rotation of the shaft 34. The head 91 has an arm 105 projecting therefrom, which enters a slot 106 in a stationary plate 107 on the frame every time the rod 90 moves up toward the chuck. This steadies the head and cutter, and prevents vibration and chattering during the cutting operation. The operation is as follows: The rod 90 with the work thereon moves up to the chuck, the chuck is operated automatically preferably in the manner represented in Figs. 1 and 5 to clamp the work and rotate it. Then the cam 71 acts to move the screw 103 against the slide so as to cause the non-rotating tool to cut a groove in the inside of the rotating work. The screw and the rod 90 are then withdrawn, the chuck jaws released, and the work is forced out by the ejector on the sorter as shown in the first five figures.

In both forms of the invention which are shown a turning operation is performed entirely by automatic means, so that the operator has only to place the work on the head, or in the magazine if that is used, and start and stop the machine.

lVhile I have illustrated and described two forms in which the invention can be carried out, I am aware that many modifications can be made therein by persons skilled in the art without departing from the scope of 15. In a metal turning machine, the com- I In testimony whereof I have hereunto set binaticn of a work holding device, a transmy hand, in the presence of two subscribing 1 versely movable slide, a cutter mounted on Witnesses. said slide, a shaft having means for operat- 5 ing the work holding device, means connect- WILLIAM COLE ed with said shaft for moving said slide in Witnesses: one direction, and a spring engaging the LOUIS W. SOUTHGATE,

slide for moving it in the opposite direction. C. FORREST Wnsson. 

